/*
 * Copyright (c) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const is = (type) => {
  return (source) => Object.prototype.toString.call(source) === `[object ${type}]`;
};

exports.isFunction = is('Function');
exports.isUndefined = is('Undefined');
exports.isObject = is('Object');
exports.isArray = is('Array');
exports.isNull = is('Null');
